Figure 9.

A representative example of the fill/empty log plot of MI buffers (A) and MI class discrimination plot (B) shares the timeline (subject no. 2). Three kinds of buffers (stand, gait, and sit, size of 10) were illustrated in light-gray, mid-gray, and dark-gray box. Stair shaped line depicts the fill/empty of each corresponding buffer. The false classification was marked as an arrow beneath the timeline. The deviation from true classification (solid red line) was shown in a square plot below.